Detailed Description
In order to make those skilled in the art better understand the technical solutions in the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application shall fall within the scope of the protection of the embodiments in the present application.
The following further describes specific implementations of embodiments of the present application with reference to the drawings of the embodiments of the present application.
As shown in fig. 1-7, according to the embodiment of the present invention, the feeding device includes a jig conveying portion, a first feeding portion and a first clamping portion 40, the jig conveying portion is provided with a first conveying mechanism 10 for carrying the jig and driving the jig to move and a second conveying mechanism for driving the jig to separate from the first conveying mechanism 10 and move to a processing position, and the processing position at least includes a feeding position; the first feeding part comprises a first feeding mechanism 20 and a feeding positioning assembly 30, the first feeding mechanism 20 bears a first material and drives the first material to move onto the feeding positioning assembly 30, and the feeding positioning assembly 30 positions the first material at a first clamping position; the first clamping part 40 is used for clamping the first material on the first clamping position and placing the first material on a jig on the loading position.
Through the loading attachment of this embodiment, first conveying mechanism 10 of tool conveying part can carry the tool, and second conveying mechanism (not shown in the figure) can drive the tool and break away from with first conveying mechanism 10 when needs to move to the processing position, thereby makes the tool stop at the processing position, places the first material of getting with the clamp by convenient first clamp portion 40 on the corresponding position of tool. The first feeding portion is used for automatically conveying the first material and accurately positioning the first material to the first clamping position by using the feeding positioning assembly 30, so that the first clamping portion 40 can accurately clamp the first material, and the placing precision of the first material on the jig is guaranteed. Just so realized placing the purpose of first material on the tool through loading attachment is automatic, promoted the degree of automation in the production process, reduced intensity of labour, promoted efficiency, reduced the fault rate.
The first supply unit, the second supply unit, and the third supply unit will be described with reference to fig. 1 to 4. Of course, in other embodiments, the first supply part, the second supply part and the third supply part may have other structures, which is not limited in this embodiment.
Alternatively, as shown in fig. 1 and 2, the first feeding mechanism 20 includes a first feeding belt 21 and a position adjusting assembly. The first feed belt 21 carries the first material and drives the first material to move in the horizontal direction to the stock position. The position adjustment assembly is disposed in correspondence with the stock preparation position and pushes the first material at the stock preparation position onto the feed positioning assembly 30.
In this embodiment, the first material may be a bipolar plate in a stack of a fuel cell. The bipolar plates may be placed directly on the first feeding belt 21 or may be held by a magazine or tray placed on the first feeding belt 21.
Taking its placement in a magazine as an example, first feed belt 21 may move horizontally and drive the magazine with bipolar plates placed thereon to a stock location (the stock location may be the end of first feed belt 21 or other suitable location) in the horizontal direction.
First feed belt 21 may be any suitable conveyor belt, for example, in this embodiment, first feed belt 21 includes a sprocket and a chain engaged with the sprocket, and the sprocket is driven to rotate so as to drive the chain to move and convey the bins. This allows a stable, fast and reliable transport of the first material.
The position adjustment assembly is used to adjust the position of the bin and push the first material out of the bin onto the feed positioning assembly 30 so that the feed positioning assembly 30 positions the first material to the first clamp position.
For example, in the present embodiment, the position adjustment assembly includes a vertical adjustment member and a horizontal adjustment member to adjust the vertical position and the horizontal position, respectively.
The vertical adjusting member is disposed below the first material and drives the first material at the material preparing position to move upward to a first adjusting position matching the height of the bearing surface of the feeding positioning assembly 30.
The vertical adjusting piece can be a vertically arranged telescopic cylinder, a lead screw lifting device, a worm and gear lifting device or other structures capable of adjusting the vertical height of the first material. Preferably, the vertical adjustment member may be a telescopic cylinder to make the structure simpler while ensuring the reliability of the vertical adjustment. When the detection pieces such as a limit switch and a position sensor detect that the material box moves to the material preparation position, the vertical adjusting piece is controlled to extend to enable the material box to be lifted, so that the height of the material box is matched with the height of the bearing surface of the feeding positioning assembly 30 (matching can be understood as that the height of the material box is higher than that of the bearing surface, the height difference is smaller than a set value, and the set value can be determined as required).
The horizontal adjustment member drives the first material in the first adjustment position to move horizontally onto the bearing surface of the feed positioning assembly 30.
The horizontal adjusting piece can be a telescopic cylinder, a telescopic hydraulic cylinder or other structures which can adjust the horizontal position of the first material, wherein the telescopic cylinder, the telescopic hydraulic cylinder or the other structures are horizontally arranged. Preferably, the horizontal adjusting member may be a horizontally disposed telescopic cylinder, and the top layer of the first materials or the bottom layer of the first materials stacked in the stack is pushed by the horizontal telescopic movement of the horizontal adjusting member to move from the bin to the carrying surface of the feed positioning assembly 30.
One specific feeding process is as follows: as shown in fig. 2, the bin is placed on the lower layer conveyor belt of the first feeding belt 21 and moves under the driving of the lower layer conveyor belt, and the stock position is the tray surface of the tray of the vertical adjusting member. When the bin is moved onto the tray of the vertical adjustment, it is moved to the stock preparation position. At this point, the vertical adjustment moves the bin upward to the appropriate height, after which the horizontal adjustment in the bin pushes the first material out of the bin to the feed positioning assembly 30. After the first materials are all pushed out of the bin, the bin is sent out from the upper layer conveying belt of the first conveying belt 21.
As shown in fig. 2, in the present embodiment, the feeding positioning assembly 30 includes a supporting platform and a jacking platform, and the upper surface of the supporting platform is a bearing surface. The supporting table is provided with a conveying belt for conveying the first material on the supporting table to the jacking table, and the jacking table jacks the first material to the first clamping position. Therefore, the first material can be accurately clamped by the first clamping part 40, the clamping reliability can be guaranteed, the clamping precision can be guaranteed, and the precision of placing the first material on the jig can be guaranteed.
Of course, in other embodiments, other configurations of the feed positioning assembly may be used, so long as it is ensured that the first material is delivered to the first clamping position.
As shown in fig. 2, the first clamping part 40 may be a multidimensional industrial robot, a soft robot, or the like, as long as clamping and placing of the first material can be achieved.
In the present embodiment, the first gripping section 40 is a multi-dimensional industrial robot having a plurality of degrees of freedom, and can be adjusted in posture as needed and moved to a desired position. For example, the first clamping part 40 includes a clamping base, a first arm, a second arm, a third arm and a jaw, wherein the first arm is disposed on the base and can rotate around a vertical axis relative to the base, the first end of the second arm is connected to the first arm, the second arm can rotate around a horizontal axis relative to the first arm, the first end of the third arm is connected to the second end of the second arm, the third arm can rotate around a horizontal axis relative to the second arm, and the jaw is connected to the second end of the third arm and can rotate around a horizontal axis relative to the third arm.
Of course, the specific structure of the first gripping section 40 is not limited thereto, and other types of industrial robots may be used as needed.
Optionally, the first clamping part 40 may further include a vision detection module and an identity recognition module, where the vision detection module includes a camera for collecting an image, so as to analyze the image to determine whether a material in the collected image is damaged, thereby implementing a vision detection function.
The identity module may include a two-dimensional code recognizer that may scan a two-dimensional code on the item to recognize the identity.
As shown in fig. 1 and 3, the feeding device further includes a second feeding section having a second gripping position and a second feeding mechanism 50 that sequentially conveys a plurality of types of second materials to the second gripping position; the first clamping part 40 is also used for clamping the second material at the second clamping position onto the jig.
The second material may be a single plate in a fuel cell stack, and the number and type of single plates in different stacks may be different. The second feeding mechanism 50 is configured to convey different types of second materials, and move the second materials to the second clamping position in sequence, and if the electric pile assembled at the present time needs a veneer located at the second clamping position, the first clamping unit 40 clamps the veneer and places the veneer onto the jig. On the contrary, if the veneer located at the second gripping position is not needed, the second feeding mechanism 50 continues to move, so that the veneer of the type is moved out from the second gripping position.
Alternatively, the second feeding mechanism 50 includes an endless belt base 51, an endless conveyor belt 52, and a second material tray 53, the endless conveyor belt 52 is movably disposed on the endless belt base 51, and the conveying path of the endless conveyor belt 52 passes through the second gripping position; the second material trays 53 are plural and arranged at intervals on the endless conveyor belt 52, and each second material tray 53 is used for carrying one type of second material. With the second feeding mechanism 50 having such a structure, different types of second materials can be sequentially conveyed to the second clamping position, and circular feeding can be realized.
The endless belt base 51 is used to carry an endless conveyor belt 52, a second material and a second material tray 53, etc.
As shown in fig. 3, in the present embodiment, the endless conveyor belt 52 includes a drive sprocket, a tension sprocket, and a chain. The chain is sleeved on the driving chain wheel and the tensioning chain wheel to move under the driving of the driving chain wheel. Each second material tray 53 is connected to the chain so as to be able to move along with the chain, thereby achieving the purpose of sequentially conveying various second materials to the second clamping positions.
Preferably, in order to reduce wear and ensure stable and reliable movement of the second material tray 53, the endless belt base 51 is further provided with an endless guide rail, the second material tray 53 is arranged on the endless guide rail, and the weight of the second material tray 53 is borne by the endless guide rail, so that the endless conveyor belt 52 can move along the endless guide rail with only a small force applied to the second material tray 53.
Preferably, in order to ensure that the first clamping part 40 can be stable and reliable in clamping the second material, the second feeding mechanism 50 further comprises a locking structure, and at least one second material tray 53 is correspondingly provided with the locking structure, and when the second material tray 53 is located at the second clamping position, the locking structure is locked to maintain the second material tray 53 at the second clamping position.
It should be noted that the second material tray 53 provided with the locking structure may be determined as needed as long as it is ensured that it can be limited to the second gripping position so that the first gripping part 40 can grip the second material.
The locking structure may be any suitable structure, as long as when it is detected that the second material tray 53 moves to the second clamping position and needs to clamp the second material thereon, the locking structure is controlled to lock so as to prevent the second material tray 53 from continuing to move, keep it at the second clamping position, and wait for the first clamping part 40 to clamp the second material thereon.
One possible locking structure may be a locking air rod, and when the photoelectric sensor detects that the second material tray 53 reaches the second clamping position, the controller determines that the second material tray needs to be clamped, and then the controller controls the locking air rod to extend out and insert into the positioning hole, so as to lock the second material tray 53.
The positioning holes may be provided to the endless belt mount 51, may be provided on the endless guide, or may be provided on other structures.
As shown in fig. 1 and 4, in order to enable automatic feeding and stacking of the third material, the feeding device further includes a third feeding portion and a second clamping portion 70. The third feeding part comprises a third clamping position and a third feeding mechanism 60, and the third feeding mechanism 60 bears the third material and conveys the third material to the third clamping position; the second gripping unit 70 is used for gripping the third material at the third gripping position onto the jig.
The third supply part is used for conveying a third material, and the third material can be a membrane electrode in a stack of the fuel cell. In this embodiment, the third feeding mechanism 60 includes a third material conveying belt and a third material storage rack. As shown in fig. 4, a plurality of third materials are stacked on the third material storage rack, and the third material storage rack is transported to the third gripping position during the movement of the third material conveyer.
After receiving a detection signal transmitted by the photoelectric sensor located at the third clamping position and used for detecting the third material, the controller controls the second clamping part 70 to act, so as to clamp and place the third material on the jig.
In the present embodiment, the second gripping section 70 may be a multi-dimensional industrial robot, which may be the same as or different from the structure of the first gripping section 40. In this embodiment, the second clamping part 70 is provided with a vision detection module and an identity recognition module, the vision detection module can be a camera or the like, and the vision detection module collects the image of the third material to visually inspect the third material and determine whether the third material is damaged, and the second clamping part is clamped to the feeding position if the third material is not damaged and placed on the jig.
The identity identification module can be a two-dimensional code recognizer and the like, and is used for recognizing the machine identification code on the third material, determining the type or the related information of the machine identification code, and the like.
In the material stacking process on the jig, the first clamping part 40 and the second clamping part 70 cooperate to clamp the first material, the second material and the third material and place the first material, the second material and the third material on the jig at the feeding position. In the process of piling, the conveying and positioning precision of the first material, the second material and the third material is ensured, so that the position accuracy of the first material, the second material and the third material on the jig is ensured. In addition, be provided with the locating lever on the tool to the position of injecing first material, second material and third material on the tool realizes carrying out calibration and fixed effect to it.
In this embodiment, the jig is disposed on the first conveying mechanism 10, and is moved along with the first conveying mechanism, and when a material needs to be placed on the jig, the jig is driven to the processing position by the second conveying mechanism. The structure and operation of a specific tool conveying part will be described in detail with reference to fig. 5-7. It should be noted that in other embodiments, the jig conveying unit may have other suitable structures as long as the conveying of the jig can be realized.
Alternatively, in the present embodiment, the first conveying mechanism 10 of the jig conveying section includes at least two conveying lines 11 and a connecting assembly 12. The conveying line 11 is used for conveying the jig so that the jig passes through at least one processing position. The connecting assembly 12 is used for transferring jigs between the conveying lines 11.
For example, each conveyor line 11 can move along a first straight line, at least two conveyor lines 11 are arranged parallel to each other, and the moving directions of two adjacent conveyor lines 11 are opposite; the connecting assembly 12 is arranged corresponding to the tail ends of two adjacent conveying lines 11, the connecting assembly 12 comprises a moving tray 121, the moving tray 121 can reciprocate along a second straight line, the jig on one conveying line 11 is conveyed to the other adjacent conveying line 11, and the second straight line is perpendicular to the first straight line.
The conveyor line 11 may be a double speed chain driven by a variable frequency motor to convey the jigs positioned thereon during movement. The jig can be rapidly conveyed by adopting the speed doubling chain. Because two at least transfer chain 11 parallel arrangement each other, make full use of the space, make transfer chain 11 parallel arrangement in the space, guarantee that the transfer chain is enough long, have enough positions to arrange the processing position, place its factory building etc. in addition and need not have overlength length to reduce the construction degree of difficulty of factory building, make loading attachment's adaptability better.
As shown in fig. 5, in the illustrated embodiment, there are two conveying lines 11 and two connecting assemblies 12, and the conveying line 11 is located between the two connecting assemblies 12, so that after the jig moves to the end of the conveying line 11 along the first straight line on the conveying line 11, the jig moves to the moving tray 121 of the connecting assembly 12, and since the moving tray 121 can move along the second straight line, the jig is carried by the moving tray 121 to the position corresponding to the adjacent conveying line 11 and is conveyed to the adjacent conveying line 11. This enables the transfer of the tool between the two transport lines 11.
Because the number of the connecting assemblies 12 is two, the movement tracks of the jig on the conveying lines 11 and the connecting assemblies 12 are annular tracks, so that the jig can circularly move between the conveying lines 11, and the space is fully utilized.
Optionally, in this embodiment, in order to facilitate the jigs to enter into or move out of the moving tray 121, the connecting assembly 12 further includes a loading and unloading structure 122, the loading and unloading structure 122 is disposed on the moving tray 121, and the loading and unloading structure 122 is movable along a first line to load the jigs into or output the jigs from the moving tray 121.
For example, the loading and unloading structure 122 may be a conveyor belt disposed on the moving tray 121, such that the jig is placed on the conveyor belt, and since the conveyor belt can move along the first straight line, when the jig moves from the conveying line 11 to the moving tray 121, the jig is driven by the conveyor belt and moves to the moving tray 121 more easily, or when the jig is separated from the moving tray 121, the jig can be pushed out of the moving tray 121 by the conveyor belt to reach the conveying line 11 more easily.
Of course, the handling structure 122 may also be other structures, such as transport rollers, transport wheels, and the like.
Optionally, in order to make the movement of the moving tray 121 more stable and reliable and more convenient to control, the connecting assembly 12 further includes a guide rail 123 and a driving member 124. The guide slide 123 extends along a second straight line, and the moving tray 121 is disposed on the guide slide 123 and is movable along the guide slide 123 to a first position aligned with one of the adjacent two conveying lines 11 or to a second position aligned with the other of the adjacent two conveying lines 11. The driving member 124 is connected to the moving tray 121 through a driving screw, and drives the moving tray 121 to reciprocate along the second straight line.
In this embodiment, the driving member 124 can provide a power source for the moving tray 121, so that the movement (e.g., whether to move or the moving direction) of the moving tray 121 can be well controlled.
The drive member 124 includes a prime mover, which may be an electric motor, a pneumatic cylinder, a hydraulic motor, or the like, and a transmission member. The transmission member may include a lead screw and a lead screw nut provided on the lead screw, the lead screw is connected with the prime mover to convert the rotation of the prime mover into a linear motion of the lead screw nut, thereby driving the motion tray 121 connected with the lead screw nut to move, thereby making it reciprocate.
Of course, in other embodiments, the driving member 124 may have other structures, for example, the driving member 124 includes a driving member, a transmission chain, and the like, which is not limited in this embodiment.
The guide rail 123 is used for guiding the movement of the moving tray 121 and preventing the moving tray from shifting during the movement, thereby ensuring the working reliability and preventing the driving member 124 connected with the moving tray from being damaged due to the shifting.
In this embodiment, the number of the guide slide rails 123 is two, and the guide slide rails 123 are arranged in parallel, and the moving tray 121 is provided with a groove matched with the guide slide rails 123, so that the moving tray 121 can move along the guide slide rails 123, friction force generated during the moving process of the moving tray 121 is reduced by the aid of the guide slide rails 123, abrasion to the moving tray 121 is reduced, and the service life is prolonged.
Optionally, in order to increase the processing speed and the automation degree, a plurality of processing positions are distributed along the conveying stroke of the first conveying mechanism 10, a second conveying mechanism and a detector are correspondingly arranged at each processing position, and the detector is arranged on the first conveying mechanism 10; the feeding device further comprises a controller, wherein the controller is respectively connected with the first conveying mechanism 10, the plurality of second conveying mechanisms and the plurality of detectors, and controls the start or stop of the first conveying mechanism 10 and/or the start or stop of the second conveying mechanisms according to detection signals of the detectors.
The processing position is used for allowing the jig to stay so as to place the first material, the second material, the third material and the like on the jig, and therefore required products are processed. In one possible approach, each processing location may correspond to a step in a processing sequence, for example, the processing locations for stacking the first material, the second material, and the third material may also be referred to as loading locations. Of course, in other possible ways, two or more machining positions may correspond to one step in the process.
A second conveying mechanism and a detector are correspondingly arranged at each processing position, and the detector is used for detecting whether the jig reaches a position corresponding to the processing position in the process of moving along with the first conveying mechanism 10. The second conveying mechanism is used for separating the jig from the first conveying mechanism 10 and moving the jig to the processing position when the corresponding detector detects the jig. For example, the second conveying mechanism may be a lifting cylinder, a hydraulic cylinder, or the like, and the jig is separated from or brought into contact with the first conveying mechanism 10 by lifting the second conveying mechanism.
Optionally, a photoelectric sensor for detecting whether the jig is lifted in place is further arranged at the top of the second conveying mechanism.
The controller may be a control chip such as a CPU, MCU, PLC, etc., or a computer, mobile terminal, etc., as long as the control function can be realized. The controller is used for receiving the detection signal of the detector and controlling at least the first conveying mechanism 10 and the second conveying mechanism according to the detection signal of the detector.
For example, if the controller receives a detection signal indicating that the jig is detected, the controller controls the second conveying mechanism corresponding to the detection signal indicating that the jig is detected to start, and jacks up the jig to the processing position; and/or if the controller determines that the jigs exist in the two adjacent machining positions according to the received detection signal, controlling the first conveying mechanism 10 to stop.
The following describes the control process of the controller, taking 3 machining positions as an example:
the number of machining positions is set to 3, and detectors (denoted as detectors a to C) and second conveying mechanisms (denoted as second conveying mechanisms a to C) are provided in correspondence with each machining position. In the process that the jig moves along with the first conveying mechanism 10, when the jig is detected by the detector A, the detection information indicating that the jig is detected is sent to the controller, the controller controls the second conveying mechanism A to start according to the detection information, the second conveying mechanism A extends and jacks up the jig, the second conveying mechanism A is separated from the first conveying mechanism 10 and reaches a processing position, and at the moment, the first conveying mechanism 10 continues to move to convey other jigs. The material can be gripped by the first gripping part 40 and the second gripping part 70 and placed on the corresponding positions of the jig during the time when the jig stays at the processing position.
After the first material, the second material and the third material are placed and one processing position behind the processing position is idle, the controller can control the second conveying mechanism to contract, so that the jig with the placed materials descends onto the first conveying mechanism 10 and continues to move to the next processing position along with the first conveying mechanism 10.
After the first material, the second material, and the third material are placed, and one processing position after the processing position is not idle (i.e., there is a jig), the controller determines that there is a jig in each of two adjacent processing positions, and the movement of the first conveying mechanism 10 cannot be continued, and controls the first conveying mechanism 10 to stop (e.g., reduce the frequency of the motor of the first conveying mechanism 10 to 0).
Optionally, in order to ensure that the jig can be blocked from passing through when the jig reaches the position corresponding to the processing position on the first conveying mechanism 10, a blocking assembly is further disposed on the first conveying mechanism 10. This allows the blocking assembly to block the jig when required.
For example, in the present embodiment, the blocking assembly includes a telescopic member and a blocking member, and the telescopic member is disposed on the first conveying mechanism 10 at a position corresponding to the processing position. The blocking piece is rotatably arranged on the telescopic piece through the blocking base and driven by the telescopic piece to reciprocate up and down. In this embodiment, the detector is disposed on the blocking base, and the first end of the blocking member is matched with the telescopic member, and the second end of the blocking member is higher than the first end, so that the jig can touch the second end of the blocking member when arriving, and the blocking member rotates, the first end of the blocking member moves downward to touch the detector, and the detector detects that the jig is in place. The second conveying mechanism jacks up the jig.
When the jig is required to pass after the operation of the jig is completed, the second conveying mechanism descends to enable the blocking assembly and the jig to descend together. And then, the telescopic piece contracts to enable the blocking base and the blocking piece to descend relative to the jig together and to be separated from the jig, so that the jig can pass through. At this time, the second end of the blocking member is no longer acted by the fixture, so the first end of the blocking member is separated from the detector.
Optionally, in order to make the jig pass through more easily, a roller is arranged on the second end to reduce the friction force when the jig passes through.
According to another aspect of the present invention, a fuel cell stack assembly system is provided, which includes the above-mentioned feeding device. The fuel cell stack assembly system adopting the feeding device can automatically place the first material, the second material and the third material on the jig, thereby improving the automation degree of the production process, reducing the production cost and ensuring the production quality.
Of course, it is not necessary for any particular embodiment of the present application to achieve all of the above advantages at the same time.
The expressions "first", "second", "said first" or "said second" as used in various embodiments of the present application may modify various components irrespective of order and/or importance, but these expressions do not limit the respective components. The foregoing description is only for the purpose of distinguishing elements from other elements. For example, the first user radiation therapy device and the second user radiation therapy device represent different user radiation therapy devices, although both are user radiation therapy devices. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present disclosure.
While the preferred embodiments of the present application have been described, additional variations and modifications will occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following appended claims be interpreted as including all such alterations and modifications as fall within the true spirit and scope of the application. It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.